Home / 25,401.16-35,070.72-15,855.58

Finding the Fourth Proportional to 25,401.16, 35,070.72 and 15,855.58

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Solution

The fourth proportional to 25,401.16, 35,070.72 and 15,855.58 is: 21,891.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,401.16 : 35,070.72 = 15,855.58 : x
  2. Step 2: Convert to fraction form
    25,401.16/35,070.72 = 15,855.58/x
  3. Step 3: Cross multiply
    25,401.16x = 35,070.72 × 15,855.58
  4. Step 4: Simplify right side
    25,401.16x = 556,066,527.34
  5. Step 5: Solve for x
    x = 556,066,527.34/25,401.16
  6. Step 6: Final answer
    x = 21,891.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.